IP3 2021-Wireless 3 (LOT 12964)

This lot is generally related to a radio transceiver for down-converting radio frequency signals to provide gain control, a good noise and low power consumption. Disclosed is a signal down-converter consisting of a pair of passive double sideband mixers for receiving quadrature RF signals. The system mixes the quadrature RF signals with local oscillator driving signals to provide mixed differential signals. The system feeding the mixed differential signals are fed to a differential difference feedback amplifier having high frequency and provides a down-converted output signal. The technology may be implemented in mobile phones, set-top boxes, etc.